JBL Synthesis K2 S9900 - Manual (Page 32)

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to each of the capacitor positions in the various networks. The biasing of the
capacitors is done through a large value resistor (2.2 megohm) and thus draws
no appreciable current. The expiration date printed on the battery generally
coincides with the need to replace the batteries. Each capacitor position is
actually made up of two capacitors connected in series. The battery voltage
is applied to the center connection of the two capacitors. This produces a
voltage potential between the two plates within the capacitor. When the two
parts are taken as a whole, there is no DC voltage that appears across them,
but individually they are each biased. The sonic result of the biasing is an
increase in detail, increased smoothness and considerably more natural
resolution of sounds within the music.